Sorry I thought this was more of an industrial application.

You have a lab???!!! I am so jealous. They took away my soldering station.....

Phoenix Contact also makes a unit that only does VDC to MA for about half the cost of 'one for all' module. About $200.

Back in the day I would have built it too but today I only play with big wires and voltages so I cannot justify my time on building something I can buy off the shelf for a few hundred dollars.

RSsorry,
RSmike